| Most common failures | No# failures |
|---|
| Windscreen wiper does not clear the windscreen effectively | 1106 |
| Headlamp aim out of alignment | 655 |
| Brake pipe excessively corroded | 558 |
| Brakes imbalanced across an axle | 344 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 173 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 159 |
| Anti-lock braking system warning lamp indicates an ABS fault | 152 |
| Nearside Front Macpherson strut has excessive movement at the upper attachment |2.5.A.1c| | 121 |
| Registration plate lamp issues | 117 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 99 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 91 |
| Offside Front Macpherson strut has excessive movement at the upper attachment |2.5.A.1c| | 87 |
| Nearside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 83 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 81 |
| Offside Front Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 80 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 74 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 74 |
| Offside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 73 |
| Nearside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 72 |
| Nearside Front Headlamp not working on dipped beam |1.7.5a| | 71 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 67 |
| Offside Front Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 65 |
| Offside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 64 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 64 |
| Offside Front Headlamp not working on dipped beam |1.7.5a| | 59 |
| Offside Stop lamp not working |1.2.1b| | 57 |
| Front brake application uneven | 53 |
| Nearside Front Suspension arm has excessive play in a ball joint |2.4.G.2| | 50 |
| Rear fog lamp not working |1.3.2b| | 50 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 50 |
| Nearside Stop lamp not working |1.2.1b| | 49 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 49 |
| Rear brake binding | 49 |
| Registration plate issues | 48 |
| Front Exhaust system not adequately supported |7.1.1| | 44 |
| Offside Front Position lamp not working |4.2.1 |a|| | 43 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 40 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 40 |
| Nearside Stop lamp(s) not working (4.3.1 (a) (ii)) | 40 |
| Nearside Front Lower Suspension arm has excessive play in a ball joint |2.4.G.2| | 40 |
| Windscreen washer not working | 39 |
| Offside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 38 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 37 |
| Offside Rear Stop lamp not working |1.2.1b| | 36 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 36 |
| Nearside Front Macpherson strut top bush or bearing has excessive wear or free play (5.3.4 (a) (i)) | 36 |
| Offside Front Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 35 |
| Offside Front Service brake excessively binding (1.2.1 (f)) | 35 |
| Offside Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 34 |
| Rear brake application uneven | 34 |
| Exhaust emissions carbon monoxide content after 2nd fast idle excessive |7.3.D.3| | 33 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 33 |
| Offside Front Macpherson strut top bush or bearing has excessive wear or free play (5.3.4 (a) (i)) | 33 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 33 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 32 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 31 |
| Exhaust emissions carbon monoxide content at idle excessive |7.3.D.4| | 30 |
| Nearside Front Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 30 |
| Nearside Front Lower Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 30 |
| Nearside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 29 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 29 |
| Front brake disc in such a condition that it is seriously weakened | 29 |
| Offside Front Lower Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 29 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 28 |
| Nearside Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 28 |
| Windscreen wiper blade insecure | 27 |
| Engine MIL inoperative or indicates a malfunction |8.2.1.2 |h|| | 26 |
| Exhaust system not adequately supported |7.1.1| | 26 |
| Offside Rear wheel bearing rough when rotated |2.6.1| | 26 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 26 |
| Nearside Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 26 |
| Offside Rear Rear wheel bearing rough when rotated |2.6.1| | 25 |
| Offside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 25 |
| Nearside Rear wheel bearing rough when rotated |2.6.1| | 24 |
| Offside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 23 |
| Offside Rear Service brake excessively binding |1.2.1 |f|| | 23 |
| Parking brake lever has no reserve travel |3.1.6b| | 23 |
| Rear Exhaust system insecure (6.1.2 (a)) | 22 |
| Offside Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 22 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 22 |
| Parking brake: efficiency below requirements |3.7.B.7| | 21 |
| Emissions not tested (8.2.1.2 (d)) | 21 |
| Nearside Rear Stop lamp not working |1.2.1b| | 21 |
| Nearside Rear Service brake excessively binding |1.2.1 |f|| | 21 |
| Offside Front Upper Macpherson strut pin or bush excessively worn (5.3.4 (a) (i)) | 21 |
| Nearside Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 20 |
| Offside Stop lamp|s| not working |4.3.1 |a| |ii|| | 20 |
| Nearside Front Macpherson strut has excessive movement in the upper support bearing assembly |2.5.B.1b| | 20 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 20 |
| Brake pedal spongy |3.3.B.1b| | 19 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 19 |
| Front brake excessively fluctuating | 18 |
| Horn not working |1.6.2a| | 18 |
| Offside Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 18 |
| Offside Front Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 18 |
| Front Exhaust system insecure (6.1.2 (a)) | 17 |
| Nearside Front Shock absorbers has a serious fluid leak | 17 |
| Battery insecure |1.9.1| | 17 |
| Nearside Front suspension has excessive play in a lower suspension ball joint |2.5.B.1a| | 17 |
| Offside Front Track rod end ball joint has excessive play (2.1.3 (b) (i)) | 17 |
| Nearside Front Upper Macpherson strut pin or bush excessively worn (5.3.4 (a) (i)) | 17 |
| Stop lamp(s) all not working (4.3.1 (a) (iii)) | 17 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 16 |
| Nearside Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 16 |
| Offside Rear fog lamp not working |1.3.2b| | 16 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 16 |
| Parking brake lever insecure |3.1.3b| | 15 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits |8.2.1.2 |c|| | 15 |
| Horn not working (7.7 (a) (ii)) | 15 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 15 |